[あぐねる, aguneru] (v1) (uk) to tire of; to lose interest in; to be too much for one; to find unmanageable; to be beyond one's control; to not know what to do with
[あく, aku] (v5k, vi) (1) (arch) (See 飽きる) to tire of; to lose interest in; (2) to be satisfied; to enjoy; (3) (after the -masu stem of a verb) to do adequately